About this 3D model

Attempting to build add on automation for my Velux skylight. Requires a NEAM 17 Stepper Motor. I've tested this with my extruder motor which is a Kaysan http://www.kysanelectronics.com/Products/Detail.php?recordID=7850 Posting the STL files here, the scad files can be found on github. https://github.com/krbaker/3dprinting/tree/master/velux-automation